Alert archive / Tennessee / Frost Advisories in 2018
Frost Advisory 5, NWS Memphis, TN
NWS Memphis, TN issued this frost advisory at Apr 16, 2018, 4:39 AM CDT for 10 counties in Tennessee. It took effect at Apr 17, 2018, 1:00 AM CDT. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Apr 16, 2018, 4:39 AM CDT (09:39 UTC)
- In effect from
- Apr 17, 2018, 1:00 AM CDT
- Expired
- Apr 17, 2018, 7:27 AM CDT
- In force
- 6 hr
- Issued by
- NWS Memphis, TN
Counties Benton County, TN, Carroll County, TN, Decatur County, TN, Gibson County, TN, Hardin County, TN, Henderson County, TN, Henry County, TN, Lake County, TN, Obion County, TN, Weakley County, TN
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 9.7 hours before the alert went out and 179 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 4 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 794 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- -49 m²/s²
- 0-3 km storm-relative helicity
- 34 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this frost advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Memphis, TN wrote its last area forecast discussion before this frost advisory went out at Apr 16, 4:34 AM CDT, 5 minutes earlier.
Area forecast discussion, Apr 16, 4:34 AM CDT, 5 minutes before
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</html>Hazardous weather outlook, Apr 16, 3:25 AM CDT, 1 hour 14 minutes before
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</html>The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 16, 3:06 PM CDT | River Flood Advisory | MEG | Decatur, Hardin | 4 days |
| Apr 16, 3:10 PM CDT | River Flood Advisory | MEG | Tunica | 18 days |
Nearby
Frost Advisories in Tennessee, 2018Every frost advisory in 2018
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.